Stone-dressing machine



4 SHEETS-SHEET l Jane 9 y K. M TROWBRIDGE.

STONE DRESSING MAcHmE. F| LED OcT 23 l 919 WITNESS:

Jan. 9, 1923.

TROWBRIDGE STONE DREsslNs MACHINE.

4 sHEETs-sHEET 2 FILED Ocr- INVENTOR. /wf/ ATTORNEY,

K. M. -TRowBRmGEf STONE DRESSING MAcv-HNEv 4 SHEETS-sneer 3 FILED 0er.

,M |111 Q i INVENTOR.

,A TTORNEY.

WITNESS:

air aar sToN'a-Danssne MACHINE.

'appii'cation ne@ october 23.1919. serial No. $2,789; u

10 all .fw/wm it may concern: n

Be it known that l, K NNE'ri-r M.' "lnowf BRIDGE, a citizen of thefUnited `States, residing at Dallas, inthe county'of' Paulding and State of Georgia, have invented'certain new andk useful improvements Stone-Dressing Machines, of which the"v `folloi'ving'"is"a specification. f

My invention consists in a new and useful improvement in tool holdingdevices and is designed to provide a'suitable carriagelior pneumatically operated stone cutting tools, so as 4to provide means for adjusting such tools to work upon the'stone which it is 'desired to cut, at any desired angle. yThe improved features ot' my device are mounted upon the well-known type" of'. overhead travelling carriage, with atran'sverse travelling carriage, permitting the' operative parts to be moved to any desired part of the' work. The improved features of my device, consist of an inverted turret which is provided wit-hf two sectors arranged at right angles to 'one another, the main or compound sector being carried in the turret, which is rotatable, and

the second sector being slidable', mounted upon the main sector, while the slidecarriedv upon the second sector carries the tool'b'lo'cl-r` f in which'is fastened thestone working tool.

I have provided two pneumatically ,driven motors to actuate the ltriwellii'ig carriages,

and the movable sectors are provided'with clamps to fix them in any desired position. By theadjustment of these novel features of my device, it is possible to align thetool at any angle to `the stone whichfis to be worked and to change this angle at the will o'lf the operator without raising orplowering the cutting edge of the tool, and thus secure accurate cutting in evxactlythe mannerdesired. A l i rllhe foregoing improvements vare clearly indicated in the details of construction'of' the embodiment of my invention.illustrated' in the drawings andhereinatterdescribed.

In the drawings: e l Figure 1 is a sideelevationof my device. Figure 2 is a l,top plan view of travelling carriages.

' 'Figure 3 is an end view ot the transverse carriage showing the inverted turret and sectors. l f i' Fig. 4L is a sideview'showin'gf'the carriage with the turret and sectors incrossysection. Figure 5 is a bottom view o''thet-urret and sectors. r

the two f Figure-Q6 isa bottom view `cfa' modied form of tool block.

j Inrthevr drawings, thenumeral 1 designates a flat car ory carriage of any well-known type, suitable lorf supporting thereon the stone S which it' is desired to work with my device. This car 1 is mountedupon the track 2 which traversesthe suspension frame-work 3 upon which my device is carried: This ,frame work 3 `is provided with elevatingscrews 4, placed in the supporting pillars at intervals of the 'frame-work 3. Soy mounted upon these elevating screws'fi as yto admit of vertical movement are the gliders-5. The elevating screws 4 areoperated by means ofl an loperating handle 6 actuating l a sprocket t 8 carrying bevel gear'wheels 9 which mesh with bevel chain `2' whichfrotates a sha gearwheels 10,*mounted upon'shafts 'transf versely disposed to theshaft 8. These gears 10are mounted at points -adjacent the screws 4:, and mesh with gears 4f upon the screws 1. Mounted upon the girders 5 arejthe rails 11 upon which is adapted to travel the carriage 12, providedat each'of its four corners with..

thetractionvwheel's13. Thiscarriage 12fis provided with a pneumatically driven motor vM .onthe shaft of vwhich is'carried the pinion 1awhich `rmeshes with 'the gear 15 mounted uponthe shaft. 16 upon which are mounted twoo the wheels 13 upon one end 'of the carriage. 12. This shaft 16 carries the bevel 'gear 17 which Inesheswith the bevel gear 18 upon the vtransverse shai'ty 19, upon the opposite end of which is mounted the bevel f gear `2O vmeshing with the `bevel gear 21 mounted upon the shaft 22 upon which arel mounted the'other two wheels 13. The'foregoing elements provide'means of propelliig the carriage 12by means of thermotor e for travel along the rails 11. Mounted upon the carriage 12 are the transverse rails QSiadapted to carry thereon the transverse travelling carriagev 2L'Emounted4 upon the wheels 25.*A `This transverse travelling car# f riage 2ll-visp'rovided'with the pneumatically driven 1motor M on the shaft Aof which is carried the pinion 26 which meshes with the gear 27;.mounteduponthe shaft 25?V which providedatjone ot ends'adjacenthone endpfthe-carriage 24;l with a bevel gear 29y meshing with a. bevel gear 30 mountedupon the shaft 31 upon which are mounted two of the wheels 25 atone endoi1 the carriage 24.

`Thefsha'ft 28y isv provided at its fother end adjacent the 'oppositeend of the Vcarria'geg24 proximately 450 to the rails The earrage 24 is provided with bearing` Wheels 36 mounted upon the bearings 37 and adapted to bear uponthe bea-ring' surtaeesl to hold theuwhjeels 25 vupon the rails. 2B. ,The -Carriage 24 is kprovided at the vcenter oft its bottom surface 24 with a oireular Channel 38 adapted to carry slidabiy theren Lthe bolts 39 which can beintrodueed into the channel by means ofl the orifices 40 `disposed at intervals in the bottom surV .ee 24 and opening into the channel- 38. Sup ported by these bolts 39 and held in rotatable Contact with the bot-tom sui-tace 24 istbe rotatable turret 4l, cast integralwit-h uf'hieh `is the main sector 42 depending from the turret 4l. This main sector 42 is so loeafted that a perpendieular throughthe eenter ot' the bottom surface 24 biseets the sector 42. This main sectorV 42 Kis provided with a eentrally disposedslot 48 in which is n'io'unted a slide 44 bylmeans1 ot a key 45. Clamps 46 operated by levers aremounted upon this slide 44 and adapted to look this slide 44 at any ypoint upon the inner tace ot' the seetor 42. Cast integral with 'the slide 44 yis a Crossseetor 48 disposed atright. angles to the sector '42H and providedwith the centrally-disposed slot 49in Whipfh is mounted a slide 50 by means ot a key 51. yClan'ips 52 operated by levers 53 are r'fnounted upon this slide 50 and adapted to loel this slide 50 at any lpoint upon the inner :tace of the sector 48. ,Boiled tovthis slide 5() is a tool block 54 havinga fixed jaw 55 extending- ,a beyond the line of the slide 50. Pivote'd tothe bloelr54 is the swinging jaw 56 on the pivot 57, The jaws. 55 and 56 are adapted to be lockedby the bolt 58 `and the nuts 59 so as to securely hold in position any Jform oilipower hammer 60. stop bloel 61 is adapted to be clamped upon the hammer bvn'reans ot the clumps 62 having` the operating` handles 63; through Whieh operates the eut-ting' tool 65. The' stop block 6l also has the centrally disposedopening 66 in which located the oollar 6 7 upon the cutting tool 65.- The eollar 67`being lai-ger in diameter than the Qrifiee64 the play ot the cutting tool 65 is limited bythe stop block 6], Whieh can be adjusted upon the hammer 60 in sueh e way as to determine the `desired amount of,

play of the Cutting tool 65., In Figure 6 vis shown a modified ltenen' 1wot tool.block54I adapted to carry multiple hammers. The

readily apparent.

This stop bloeit 6l has the orifiee 644 i and at the same time7 the angle ot ope tool block 54 is provided with a centrally disposed fixed jaw 55', extendingr beyond the line otl the slide 50. Pivoted to the bleek 54 and located upon either side otl the ixed jaw 55 are the pivoted jaws 56 and 56 on the pivots 57. The jaws 55', 56 and 56 are adapted to be locked by the bolt 58 and the nuts 59 vso a's toseourely holdin position any form of power hammer 60.

From the foregoing descriptiony ot parts, the u sefand operationiof my devieewill be The car liand trael 2 permit the stone S to be broughtv into oper-m tiveposition beneath my device. '.lbe elevating means comprising the vertically.'r ad justable rails llv can then be adjusted tov bring the device to a suitable height above the stone S, and the travelling Carriage 12 may be travelled parallel to the track 2 to a point upon the rails 1l, Convenient torthe operation. The transverse travelling veen riage 24 may be travelled transversely to thi-v track 2, to position the device in relation to the stone t5.

When ther Carriage 24 has been satir e torily positionech'the turret 4l. may be rotated as desired, 4to properly position the main sector 42. By means ot the handles 47 the V@lamps may be keleased and tl cross seetor48 may be adjusted as desir at any point upon the main sertor the Clamps 46 being set to hold it `in adjusted position. Then by a similar operation. the

clamps 52 being released.r the tool block `may be positioned at any desired point unon the sector 48. It will be observed thatibgv means of thel adpistment of the sectors 42 and 48 and the tool block ity is p `issible to position the rstone cutting tooi 65 carried in the tool`bloelr54, so that the tool 65 will. operate upon the ston'eS at any desired angle. It will be imderstoody that by the adjustment of the hammer 60 in the tool 4block 54, the `point of the cutting tool 65 n `n'iatieally operate when adjusted. so that tba stone eutting tool 65 will travel over tbe surface ot the stone u1 tbe path de i l ot the tood r65 Will be maintained by' the 'adjustment ot the sentore 42 and Affiti and the tool block 54.` f f, ul'laving described my inventifm. what l claim is:

l; The Combination in a tool holding de.

vine. oitineaus lor boldiixe a tool 1 and means adapted to adjustthe axis-o1 the tool :1t-:inv desired angle to the pla-no ot the su ne to be Worked by the tool, said adjustix'igv means ...sion

vbeing;` adapted to"maintain/*the ivorkii'ig.-

point of thev tool i n contact with 'said plane. .2. The combination iii tool holding device7 of means forfliolding'a tool gand means adapted to adjust tlie-axisof the tool at any desiredv angle to the plane' or the surface'to be Worked'by the tool, said adjusting' means being adapted' to guide the holdinmeans in arcuate paths of travel about the point of meeting of said'axis and said plane.`

3.1The combination iii a tool holdingr device, of meansfor holding atool; means for moving said? holdingl means vertically; means for moving said holding meanshorizontally; a second'means for movingsaid holding means horizontally` at right angles to the path of the irst horizontally moving mea-ns; means adaptedto rotatevsaid holding means; and means adapted to adjustthe axis of the; holding means at any desired angle to the planev of they surface 4to be Worked'by the tool,-said "adjusting means being adaptedv to vmaintain the Workingr point ofthe tool inv Contact with said plane;

4.' The combination in atoolfholding rdevice, of means" for-holding' a tool;y means for moving-said ,holdingv means vertically; means for moving said holding means horizontally; a second means formovingvsaid holding lmeans l horizontally atl right angles to the path vor the first horizontal moving means; means adapted-vi to rotate said hold-v ing means; and meansadapted to adjust the axis of the holdingik means at any desired angle tothe 4plane of fthe' surface to ybe Worked by the tool, said adjustingr means being adapted' to guide 'the holding ymeans in arcuate paths oftravelfaboutthe point of meeting-lof said axis and said plane.V

5; The combination in a tool holding de-y vice; of a turret; meansffor moving said turret vertically; means ttor movingsaid turret horizontally; a second `meansffor lmovi-ng said turretv horizontally, at right angles to the path of iirst :horizontally movingr means and adapted to support said holding means; guiding means mounted on said supporting means, and adapted to guide the said holding means in a path describing, an are of substantially` 120; a second guiding means slidably mounted upon the first .tain said track;

guiding` means radrfiptedy to guider tlie holding means in a path describing an arc" of substantially'1200;'r and disposed `vat right vangles to the hist guiding'means. i 7. The -combination in a toolholding. de-

receive'said second slide member therein; a-

turret yadaptedto carry said' second guide member; a` carriage upon Which said turret is mounted; a second carriage upon Which, said first carriage is movably mounted; a

track adapted to support said second I*carriage thereon; and a frame adapted-to suse. The combinati@ in .a i001 homing-.ae-

vice, oit a tool block adapted to receive therei in a tool; a slide .inemberadapted to carry said tool block thereon; a semi-'circular guide member adapted to receive said slide member therein;a second sli-de member upon which said vguide member is mounted; disposed' at right angles to -saidftirst slide .meniber; a second guide member .adapted to receive said second slide member therein; a turret upon `Which said second guide member is mounted; a ytravelling` carriage upon which said turret is rotatably mounted; a second'. travelling carriage upon which said nrst carriager is adaptedr to travel; the paths of travel ofthe tivocarriages being` disposed, at right angles to each other; a-trackA upon which saidsecond carriage is! adapted to travel and lgirders upon rwhich said track is mounted; adapted to be' raised and lowered.

- 9; The combinationin a tool holding dervice, of va Jframe; a t-raclr mounted on said frame; a travelling carriagek mounted on said track; a second travelling carriage mounted ron said first carriage; a turret mounted on said second carriage; a guide #member mounted on; said turret; a slide member mounted in said guide member; a second guide membermounted onsaid slide niembei; a second. slide'niember mounted. in said second guide member; and Ya `tool block mounted on said second slide member.

` 10.I rlhefcon'ibination'in a tool holding; yde-r vice` of aframe; girders "mounted on said frame and adapted to be' manually adj listed vertically in relation thereto; a track mounted` on said girders; a travelling carriage lmounted on said track. and Lprovided with member adapted to clamp said slide member at any desired point on said guidevvay; a second cuide member depending from said slide mem ier, disposed at right angles to said irst guide member, and provided with an arcuate guideway; a second slide member'mounted in said second guide member; clamps on said second slide member adapted to clamp said second slide member at any desired point on said secon-d guideway; and a tool block mounted on said second slide member and provided with clamping means adapted to hold a tool therein. s

1l. The combination in a tool holding `device, oit' a trame; girders vmounted onv said frame and adapted to be adjusted. vertically in relation thereto; al track mounted on said girders; a travelling carriage mounted on sai-d track andprovided Withr -propulsive means; second travelling carriage mounted on said first carriage and provided with propulsive means; a turret rotatabiy suspended from saidy second carriage; a guide memberdepending from the centero said turret andv provided with an arcuate guide- Way so disposed that the horizontal plane of saidturret is tangential to said guideway; the perpendicular to said plane at the tangent point bisecting said guideway; a slide member mounted in said guide member; clamps ony said slide-member adapted to clamp said slide member at any desired point on said guideway; a second guide vmember depending from said slide member,

disposed at right angles to said iiii'st guide member, and provided with an arcuate guideway; a second slide member mounted in said second guide member; eiamps onsaid second slide member adapted to cl-ampsaid second slide member atl any desired pointon said second guideway; and a tool block mounted on said second slide member and provided withy clamping meansy adapted to hold a tool therein.

l2. The combination in a tool holding device, of a frame;- girders mounted on said frame and adapted to be adjusted vertically in relation thereto; a track mounted on said 4`girdcrs; a travelling carriagemounted on said track and provided with ypropulsive means; a second travelling` carriage mounted on said first carriage and provided Awith propulsive means; rturret 'rotatably suspended from said second carriage; a guide `member depending from the cent-er of lsaid turret and provided with an arcuate guideway so disposed that the horizontal plane` of said turret is rtangential to `said guideway, the perpendicular to said plane at the tangent point bisecting said guide-way; a slide member mounted in said guide member; clamps on saidy slide jmember adapted to clamp said slide member at any desired point on said. guideway; a second guide member depending 'from said'slide member`r -disposed at riglitangles to said first guide member, andA` provided With an arcuate guideway; a second slide member mounted in said second guide member; clamps said second slide member adapted to clamp said second slide member at any ,desired point on said second guideway; a ltool .block mounted on said second slide'member; and means adapted to retain the tool in said tool block. y y 't ,iy 1 l L 13. The combination ina tool holding `device, or' a frame; girders mountedr on said frames-nd 4adapted to be adjusted vertically in relation thereto; a track mounted on said girders; a travelling carriage mounted on said track and provided with propulsive means; a second travellingcarriage mounted on said first carriage and provided with pro-k pulsive means; a turret rotatably suspended from said second carriage; a guide member dependingl from the center of said turret and providedivith an arcuate guideway so disposed that the horizontal plane of said turret is tangential to said guideway, the perpendicular to said plane at the tangent point bisecting said guideway; a slide member mounted on said guide: member; `clamps on said slide member adapted to clamp said slide `member at any desired point on said `quidevvay; a secondguide member depend ing;` from said slide member;y disposed at right angles to said firstguide member,v and provided with an arcuate guideivay; a sec ondk slide member mounted in said second.

KENNETH M. TROVVBRIDGE. 

